How to limit the max camera distance to player (2D)

Unity Engine
1

Hello, I’m a total beginner in scripting and today I wrote my first litle camera movement script, wich is movin the camera on the center point between the player and the cursor.

C# Script:

  • using System.Collections;
  • using System.Collections.Generic;
  • using UnityEngine;
  • public class CameraController : MonoBehaviour
  • {
  • public GameObject Player;
  • private Vector3 mousePosition;
  • private Vector3 offset;
  • float Damping = 5;
  • private Vector3 Center;
  • float ViewDistance = 5;
  • void Start()
  • {
  • }
  • void LateUpdate()
  • {
  • mousePosition = Input.mousePosition;
  • mousePosition = Camera.main.ScreenToWorldPoint(mousePosition);
  • Center = new Vector3((Player.transform.position.x + mousePosition.x) / 2, (Player.transform.position.y + mousePosition.y) / 2, transform.position.z);
  • transform.position = Vector3.Lerp(transform.position, Center, Time.deltaTime * Damping);
  • Debug.DrawLine(mousePosition, Player.transform.position, Color.red);
  • }
  • }

But now I wanted to know how I can manage it to limit the disance the camera can move away from the player.

Please help!
Thanks!

2

When you paste snippets of code into the forums be sure to use Code Tags.

Using your code as a base, something like this might do the trick:

mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);

midPoint = (Player.transform.position + mousePosition) / 2;

// get the vector between the current and target positions
Vector3 deltaPosition = (Vector2)midPoint - (Vector2)Player.transform.position;

// if that vector is longer than the max distance
if(deltaPosition.magnitude > maxDistance) {
    // clamp it to max distance
    deltaPosition = Vector3.ClampMagnitude(deltaPosition, maxDistance);
    midPoint = Player.transform.position + deltaPosition;
}

midPoint.z = transform.position.z;

transform.position = Vector3.MoveTowards(transform.position, midPoint, Time.deltaTime * Damping);

I didn’t test this code, so forgive me if there’s an error. You’ll need to define whichever variables you’re missing, or rename to your preference.

2 Likes
3

I figured it out by myself but thank you for the help.

4

Thank you very much mate, I was looking for a solution to this problem for a couple of hours, but nobody offered one that suited me. Good luck!